A student's test scores for the first three quizzes were 85, 90, and 95. For the fourth quiz, the student scored 70. Which of the following statements correctly describes the effect of the fourth quiz score on the mean of the student's quiz scores?
The mean of the four quiz scores is greater than the mean of the first three quiz scores.
The mean of the four quiz scores is less than the mean of the first three quiz scores.
The mean of the four quiz scores is equal to the mean of the first three quiz scores.
There is not enough information to compare the means.
